ALSA project - the C library reference
Functions
/usr/src/RPM/BUILD/libalsa-1.0.27/src/pcm/pcm_rate.c File Reference

PCM Rate Plugin Interface. More...

Functions

const snd_config_tsnd_pcm_rate_get_default_converter (snd_config_t *root)
 Get a default converter string.
int snd_pcm_rate_open (snd_pcm_t **pcmp, const char *name, snd_pcm_format_t sformat, unsigned int srate, const snd_config_t *converter, snd_pcm_t *slave, int close_slave)
 Creates a new rate PCM.
int _snd_pcm_rate_open (snd_pcm_t **pcmp, const char *name, snd_config_t *root, snd_config_t *conf, snd_pcm_stream_t stream, int mode)
 Creates a new rate PCM.

Detailed Description

PCM Rate Plugin Interface.

Author:
Abramo Bagnara <abramo@alsa-project.org>
Jaroslav Kysela <perex@perex.cz>
Date:
2000-2004

Function Documentation

int _snd_pcm_rate_open ( snd_pcm_t **  pcmp,
const char *  name,
snd_config_t root,
snd_config_t conf,
snd_pcm_stream_t  stream,
int  mode 
)

Creates a new rate PCM.

Parameters:
pcmpReturns created PCM handle
nameName of PCM
rootRoot configuration node
confConfiguration node with rate PCM description
streamStream type
modeStream mode
Return values:
zeroon success otherwise a negative error code
Warning:
Using of this function might be dangerous in the sense of compatibility reasons. The prototype might be freely changed in future.

Get a default converter string.

Parameters:
rootRoot configuration node
Return values:
Aconst config item if found, or NULL
int snd_pcm_rate_open ( snd_pcm_t **  pcmp,
const char *  name,
snd_pcm_format_t  sformat,
unsigned int  srate,
const snd_config_t converter,
snd_pcm_t slave,
int  close_slave 
)

Creates a new rate PCM.

Parameters:
pcmpReturns created PCM handle
nameName of PCM
sformatSlave format
srateSlave rate
converterSRC type string node
slaveSlave PCM handle
close_slaveWhen set, the slave PCM handle is closed with copy PCM
Return values:
zeroon success otherwise a negative error code
Warning:
Using of this function might be dangerous in the sense of compatibility reasons. The prototype might be freely changed in future.
 All Data Structures Files Functions Variables Typedefs Enumerations Enumerator Defines